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Show Results For
- All HBS Web
(1,649)
- People (8)
- News (266)
- Research (1,037)
- Events (10)
- Multimedia (2)
- Faculty Publications (443)
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- 2019
- Chapter
Network Effects
By: Andrei Hagiu and David B. Yoffie
Network effects are a key economic and strategic phenomenon in 'new economy' industries. They can, but do not necessarily, lead to market tipping, unless they outweigh customers' benefits from differentiation and are accompanied by high switching and multi-homing... View Details
Keywords: Network Effects
Hagiu, Andrei, and David B. Yoffie. "Network Effects." In The Palgrave Encyclopedia of Strategic Management. Continuously updated edition, edited by Mie Augier and David J. Teece. Palgrave Macmillan, 2017. Electronic. (Pre-published, October 2013.)
- 2021
- Working Paper
Assessing the Strength of Network Effects in Social Network Platforms
By: Marco Iansiti
Network effects have risen to the forefront of platform competition discussions (e.g. the House Judiciary investigation of competition in digital markets, claiming that Facebook, for example, is entrenched due to strong network effects and high switching costs). While... View Details
Keywords: Social Networks; Platform Competition; Network Effects; Competition; Social Media; Digital Platforms
Iansiti, Marco. "Assessing the Strength of Network Effects in Social Network Platforms." Harvard Business School Working Paper, No. 21-086, February 2021.
- 2009
- Article
Compelled to Help: Effects of Direct and Indirect Exchange on Perceived Obligation in Professional Networks
By: Roy Y.J. Chua, Billian Sullivan and Michael W. Morris
This research examines felt obligation to help others in employees' and managers' professional networks using a social exchange perspective. We hypothesize that obligation toward others would follow the norms of both direct and indirect reciprocity. Direct reciprocity... View Details
Keywords: Perspective; Conflict of Interests; Research; Surveys; Networks; Forecasting and Prediction; Social Issues
Chua, Roy Y.J., Billian Sullivan, and Michael W. Morris. "Compelled to Help: Effects of Direct and Indirect Exchange on Perceived Obligation in Professional Networks." Academy of Management Annual Meeting Proceedings (2009).
- March 2021
- Article
On the Direct and Indirect Real Effects of Credit Supply Shocks
By: Laura Alfaro, Manuel García-Santana and Enrique Moral-Benito
We explore the real effects of bank-lending shocks and how they permeate the economy through buyer-supplier linkages. We combine administrative data on all Spanish firms with a matched bank-firm-loan dataset of all corporate loans from 2003 to 2013 to estimate... View Details
Keywords: Credit Supply Shocks; Bank Lending Channel; Input-output Linkages; Output; Mechanisms; Trade Credits; Price Effects; Economics; Credit; System Shocks; Employment; Investment; Spain
Alfaro, Laura, Manuel García-Santana, and Enrique Moral-Benito. "On the Direct and Indirect Real Effects of Credit Supply Shocks." Journal of Financial Economics 139, no. 3 (March 2021): 895–921.
- 07 Oct 2014
- News
Network Effect
after, because more genes with which to work would mean more avenues to explore in new drug development, exponentially increasing the chances of finding effective treatment and prevention. In 2004, the three families founded the Cure... View Details
Keywords: Linda Kush
- January 2023
- Module Note
Network Effects in Technology
By: Andy Wu and Matt Higgins
In business and strategy contexts, network effects are often accompanied by bandwagon (or herding) effects, positive feedback loops (or accumulated advantage effects), and market tipping (or winner-take-all dynamics). Though these phenomena are often grouped together... View Details
Wu, Andy, and Matt Higgins. "Network Effects in Technology." Harvard Business School Module Note 723-417, January 2023.
- 13 Jul 2023
- News
The Network Effect
Karan Mathur (left) and Dina Model (Illustration by Gisela Goppel) Karan Mathur (left) and Dina Model (Illustration by Gisela Goppel) When Dina Model and Karan Mathur (both MBA 2015) met through mutual friends during their first year at HBS, neither was envisioning a... View Details
- 24 Jan 2025
- News
The Network Effect
Karan Mathur (left) and Dina Model (Illustration by Gisela Goppel) When Dina Model and Karan Mathur (both MBA 2015) met through mutual friends during their first year at HBS, neither was envisioning a future business deal. “We didn’t realize that we had shared... View Details
- 01 Jun 2020
- News
The Network Effect
participate in clinical trials. On March 29, Kapoor and his wife devised a solution: WorldWithoutCOVID.org, a nonprofit public health initiative that connects medical researchers with willing volunteers. A longtime student of network... View Details
- 31 Mar 2016
- News
Network Effects Aren’t Enough
- 03 Jun 2010
- Working Paper Summaries
Platforms and Limits to Network Effects
- 19 Mar 2021
- Working Paper Summaries
Assessing the Strength of Network Effects in Social Network Platforms
Keywords: by Marco Iansiti
- Article
Network Effects Aren't Enough
By: Andrei Hagiu and Simon Rothman
In many ways, online marketplaces are the perfect business model. Since they facilitate transactions between independent suppliers and customers rather than take possession of and responsibility for the products or services in question, they have inherently low cost... View Details
Keywords: Digital Platforms; Competition; Internet and the Web; Network Effects; Market Participation
Hagiu, Andrei, and Simon Rothman. "Network Effects Aren't Enough." Harvard Business Review 94, no. 4 (April 2016): 65–71.
- 17 Jan 2012
- Working Paper Summaries
Expectations, Network Effects and Platform Pricing
- 2013
- Working Paper
Competing by Restricting Choice: The Case of Search Platforms
By: Hanna Halaburda and Mikolaj Jan Piskorski
Seminal papers recommend that platforms in two-sided markets increase the number of complements available. We show that a two-sided platform can successfully compete by limiting the choice of potential matches it offers to its customers while charging higher prices... View Details
Keywords: Matching Platform; Indirect Network Effects; Limits To Network Effects; Decision Choices and Conditions; Network Effects; Two-Sided Platforms; Marketplace Matching; Competitive Strategy
Halaburda, Hanna, and Mikolaj Jan Piskorski. "Competing by Restricting Choice: The Case of Search Platforms." Harvard Business School Working Paper, No. 10-098, May 2010. (Revised June 2010, March 2011, August 2011, March 2013.)
- 25 Feb 2020
- News
Turning Point: Network Effects
nonprofit that develops national networks of volunteer mental health professionals who can provide free, confidential care to individuals experiencing an acute or chronic need for help. Our initial focus was veterans and their families,... View Details
Keywords: Bruce Shuttleworth (MBA 1997)
- Article
Two-Sided Platforms: Product Variety and Pricing Structures
By: Andrei Hagiu
This paper provides a new modeling framework to analyze two-sided platforms connecting producers and consumers. In contrast to the existing literature, indirect network effects are determined endogenously, through consumers' taste for variety and producer competition.... View Details
Keywords: Pricing Structure; Indirect Network Effects; Product Variety; Price; Network Effects; Two-Sided Platforms; Product; Renting or Rental; Competition
Hagiu, Andrei. "Two-Sided Platforms: Product Variety and Pricing Structures ." Journal of Economics & Management Strategy 18, no. 4 (Winter 2009).
- December 2014
- Article
The Contaminating Effects of Building Instrumental Ties: How Networking Can Make Us Feel Dirty
By: Tiziana Casciaro, Francesca Gino and Maryam Kouchaki
To create social ties to support their professional or personal goals, people actively engage in instrumental networking. Drawing from moral psychology research, we posit that this intentional behavior has unintended consequences for an individual's morality. Unlike... View Details
Keywords: Networking; Morality; Dirtiness; Power; Networks; Moral Sensibility; Identity; Power and Influence
Casciaro, Tiziana, Francesca Gino, and Maryam Kouchaki. "The Contaminating Effects of Building Instrumental Ties: How Networking Can Make Us Feel Dirty." Administrative Science Quarterly 59, no. 4 (December 2014): 705–735.
- April 2020
- Article
Designs for Estimating the Treatment Effect in Networks with Interference
By: Ravi Jagadeesan, Natesh S. Pillai and Alexander Volfovsky
In this paper, we introduce new, easily implementable designs for drawing causal inference from randomized experiments on networks with interference. Inspired by the idea of matching in observational studies, we introduce the notion of considering a treatment... View Details
Keywords: Experimental Design; Network Inference; Neyman Estimator; Symmetric Interference Model; Homophily
Jagadeesan, Ravi, Natesh S. Pillai, and Alexander Volfovsky. "Designs for Estimating the Treatment Effect in Networks with Interference." Annals of Statistics 48, no. 2 (April 2020): 679–712.
- Article
Entry into Platform-based Markets
By: Feng Zhu and Marco Iansiti
This paper examines the relative importance of platform quality, indirect network effects, and consumer expectations on the success of entrants in platform-based markets. We develop a theoretical model and find that an entrant's success depends on the strength of... View Details
Keywords: Platform-based Markets; Winnter-take-all; First-mover Advantage; Indirect Network Effects; Video Game Industry; Quality; Network Effects; Market Entry and Exit; Digital Platforms; Motion Pictures and Video Industry
Zhu, Feng, and Marco Iansiti. "Entry into Platform-based Markets." Strategic Management Journal 33, no. 1 (January 2012): 88–106.